Litigation	9 Months Ended
Sep. 30, 2018
Litigation [Abstract]
Litigation	11. Litigation Shareholder Class Action Lawsuit filed July 19, 2016 On July 19, 2016, Plaintiff William Sponn ("Sponn"), filed a putative class action complaint in the United States District Court for the District of Maryland on behalf of purchasers of the Company's common stock between January 11, 2016 and June 21, 2016, inclusive (the "Class Period"), seeking to pursue remedies under the Securities Exchange Act of 1934 against the Company and certain of its senior officers and directors, collectively, the Defendants. The complaint alleges, among other things, that the Company made materially false and misleading statements about the government's demand for BioThrax and expectations that the Company's five-year exclusive procurement contract with HHS would be renewed and omitted certain material facts. Sponn is seeking unspecified damages, including legal costs. On October 25, 2016, the Court added City of Cape Coral Municipal Firefighters' Retirement Plan and City of Sunrise Police Officers' Retirement Plan as plaintiffs and appointed them Lead Plaintiffs and Robins Geller Rudman & Dowd LLP as Lead Counsel. On December 27, 2016, the Plaintiffs filed an amended complaint that cites the same class period, names the same defendants and makes similar allegations to the original complaint. The Company filed a Motion to Dismiss on February 27, 2017. The Plaintiffs filed an opposition brief on April 28, 2017. The Company's Motion to Dismiss was heard and denied on July 6, 2017. The Company filed its answer on July 28, 2017. The parties then engaged in the process of exchanging discovery. The Plaintiffs filed an amended motion for class certification and appointment of Sponn and Geoffrey L. Flagstad as lead plaintiffs on December 20, 2017. A hearing on that motion was heard on May 2, 2018. On June 8, 2018 the Court granted class certification with a shortened class period, May 5, 2016 to June 21, 2016. The Defendants have denied, and continue to deny any and all allegations of fault, liability, wrongdoing, or damages. However, recognizing the risk, time, and expense of litigating any case to trial, on August 27, 2018, the Company reached an agreement in principle with Plaintiffs to settle all of the related claims of any individual plaintiff that purchased Company stock from January 11, 2016 to June 21, 2016, for $6.5 million, an amount that will be paid by the Company's insurance carrier. The settlement requires no payment by any of the Defendants. The Company and Defendants continue to deny any and all liability. The parties executed the settlement agreement on October 16, 2018, and filed the agreement with the court on October 17, 2018. The court granted preliminary approval of the settlement on October 18, 2018 and has scheduled a hearing regarding final approval for January 22, 2019. Although the court has granted preliminary approval, the court could decide not to grant final approval of the settlement or change terms of the settlement, and the law requires that individual plaintiffs have the right to opt-out of the settlement and bring their own, individual claims. The Company, therefore, at this time, cannot predict the results of this lawsuit and possible other legal proceedings with certainty. Defendants continue to believe that the allegations in the complaint are without merit. As of the date of this filing, the range of potential loss cannot be determined or estimated.

11. Litigation

Shareholder Class Action Lawsuit filed July 19, 2016

On July 19, 2016, Plaintiff William Sponn ("Sponn"), filed a putative class action complaint in the United States District Court for the District of Maryland on behalf of purchasers of the Company's common stock between January 11, 2016 and June 21, 2016, inclusive (the "Class Period"), seeking to pursue remedies under the Securities Exchange Act of 1934 against the Company and certain of its senior officers and directors, collectively, the Defendants. The complaint alleges, among other things, that the Company made materially false and misleading statements about the government's demand for BioThrax and expectations that the Company's five-year exclusive procurement contract with HHS would be renewed and omitted certain material facts. Sponn is seeking unspecified damages, including legal costs. On October 25, 2016, the Court added City of Cape Coral Municipal Firefighters' Retirement Plan and City of Sunrise Police Officers' Retirement Plan as plaintiffs and appointed them Lead Plaintiffs and Robins Geller Rudman & Dowd LLP as Lead Counsel. On December 27, 2016, the Plaintiffs filed an amended complaint that cites the same class period, names the same defendants and makes similar allegations to the original complaint. The Company filed a Motion to Dismiss on February 27, 2017. The Plaintiffs filed an opposition brief on April 28, 2017. The Company's Motion to Dismiss was heard and denied on July 6, 2017. The Company filed its answer on July 28, 2017. The parties then engaged in the process of exchanging discovery. The Plaintiffs filed an amended motion for class certification and appointment of Sponn and Geoffrey L. Flagstad as lead plaintiffs on December 20, 2017. A hearing on that motion was heard on May 2, 2018. On June 8, 2018 the Court granted class certification with a shortened class period, May 5, 2016 to June 21, 2016. The Defendants have denied, and continue to deny any and all allegations of fault, liability, wrongdoing, or damages. However, recognizing the risk, time, and expense of litigating any case to trial, on August 27, 2018, the Company reached an agreement in principle with Plaintiffs to settle all of the related claims of any individual plaintiff that purchased Company stock from January 11, 2016 to June 21, 2016, for $6.5 million, an amount that will be paid by the Company's insurance carrier. The settlement requires no payment by any of the Defendants. The Company and Defendants continue to deny any and all liability. The parties executed the settlement agreement on October 16, 2018, and filed the agreement with the court on October 17, 2018. The court granted preliminary approval of the settlement on October 18, 2018 and has scheduled a hearing regarding final approval for January 22, 2019. Although the court has granted preliminary approval, the court could decide not to grant final approval of the settlement or change terms of the settlement, and the law requires that individual plaintiffs have the right to opt-out of the settlement and bring their own, individual claims. The Company, therefore, at this time, cannot predict the results of this lawsuit and possible other legal proceedings with certainty. Defendants continue to believe that the allegations in the complaint are without merit. As of the date of this filing, the range of potential loss cannot be determined or estimated.